body, html
    line-height: 1
    font-size: 200
    font-family: 'PingFang SC','STHeitiSC-Light','Helvetiva-Light',arial,sans-serif

.clearfix
    display: inline-block
    &:after
        display: block
        content:"."
        height: 0
        line-height: 0
        clear: both
        visibility: hidden

@media(-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5)
    .border-1px
      &:before
          -webkit-transform:  scaleY(0.7)
          transform:scaleY(0.7)
      &:after
          -webkit-transform:  scaleY(0.7)
          transform:scaleY(0.7)
@media(-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2)
    .border-1px
      &:before
          -webkit-transform:  scaleY(0.5)
          transform:scaleY(0.5)
      &:after
          -webkit-transform:  scaleY(0.5)
          transform:scaleY(0.5)